<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

</body>
<script type="text/javascript">
    console.log(Reflect.ownKeys(Symbol));
    /*
    * (18) ['length', 'name', 'prototype', 'for', 'keyFor', 'asyncIterator', 'hasInstance', 'isConcatSpreadable', 'iterator', 'match', 'matchAll', 'replace', 'search', 'species', 'split', 'toPrimitive', 'toStringTag', 'unscopables']
0: "length"
1: "name"
2: "prototype"
3: "for"
4: "keyFor"
5: "asyncIterator"
6: "hasInstance"
7: "isConcatSpreadable"
8: "iterator"
9: "match"
10: "matchAll"
11: "replace"
12: "search"
13: "species"
14: "split"
15: "toPrimitive"
16: "toStringTag"
17: "unscopables"
length: 18
[[Prototype]]: Array(0)
    * */
</script>
</html>